1.It has been rather costly to install the machinery, but it will prove to be worth the money ________.
A) in the long run
B) in conclusion
C) at long last
D) at the end

2.I don’t know why he ________ in the middle of a sentence.
A) broke off
B) broke out
C) broke through
D) broke away

3.I’m sorry Andy didn’t want to go to the conference. ________ willing to go we would have paid all his expenses.
A) Being
B) Was he
C) He had been
D) Had he been

4.We had a party last month, and it was a lot of fun, so let’s have ________ one this month.
A) another
B) more
C) the other
D) other

参考答案及解析：

1. 原文译文: 安装机器费用很高 ,但从长远来看是值得的。
解析：in the long run 从长远看来，in conclusion 最后, 总之，at long last终于， at the  end 最后(终于)。所以正确答案应该选择A。

2. 原文译文: 我不知道他为什么在句子中间突然停下了。
解析：break off 中断, 折断, 突然停止, 脱落, 暂停, 断绝, 解除, break out突发, 爆发叫嚷, 使作准备, break through突围, 突破, break away突然离开, 脱离, 放弃, (运动中)反攻为守。 所以正确答案应该选择A。
3. 原文译文:很抱歉，Andy不想参加会议。如果他想参加的话，我们就得支付他所有的费用。

解析：本句是对过去情况的虚拟，要退后一个时态，所以要用过去完成时，同时，如果在虚拟条件句中，省略if，助动词要提前，所以本题把had提前了。
所以正确答案应该选择D。

4. 原文译文:上个月我们举行了一个聚会，非常有意思，所以我们这个月再举行一次吧！
解析: another指三者以上中不确定的另一个, more用在比较级中，后面经常跟than, the other特指两者当中的另一个，other其他的，后面修饰可数名词的复数或不可数名词。 
所以正确答案应该选择A。